Car-coupling



(No-Model?) VI. MITCHELL.

GAR COUPLING. v I No. 349,400. Patented'Sept, 21, 1886.

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. :NITED STATES %PATENT OFFICE,

'iskAo MITCHELL, or WOODBINE, IOWA.

CAR-COUPLING.

-SPECIFICATION forming part of Letters Patent No. 349,400, datedSeptember 21, 1886.

v Application filed June 26, 1886. Serial No.5l0G,348. (No model.)

To all whom, it may concern:

Be it known that I, ISAAC MITCHELL, a citizen of the UnitedStates,residing at Voodbine, in the county of Harrison and State ofIowa, have invented a new and useful Improvement in Car-Couplings, ofwhich the following is a specification.

My invention relates to an improvement in car-couplings; and itconsistsin the peculiar construction and combination of devices, that will bemore fully set forth hereinafter, and particularly pointed out in theclaim.

In the drawings, Figure l is aside elevation of a car-coupling embodyingmy improvements. Fig.2 is a vertical longitudinal sectional view of thesame. Fig. 3 is a top plan view. Fig. 4 is a detached plan view of thekeeper for the operating-rod.

A' represents the draw-head, which is provided with the enlargedoutwardly flared mouth B to receivethe coupling-link. Th rough thecenter of the draw-head, in rear of the mouth, is made averticallongitudinal slot,

O. The upper side of the draw-head,near the mouth, is thickened, as atD, and through the said draw-head, near the mouth and in front oftheslot 0, is avertical transverse slot, E.

F represents an arm, the lower portion of which is in the slot 0. Thelower end of this arm is pivoted to the under side of the drawhead bymeans of a transverse pin, G, which is journaled in keepers H, that aresecured to the under side of the draw-head. From the upper end of thearm F, on the front side thereof, projects a stud, f.

I represents a eoupling-pin,which fits in the slot-E, and is providednear its center with a transverse horizontal opening,K. On the rear sideof the coupling-pin is a vertical groove, L,which extends from theopening K nearly to the top of the coupling-pin.

M represents a spring, which is secured in the upper rear side of' theslot (3 and bears against the rear side of the pivoted arm F, so as toinove'the upper end of the latter forwardly and cause the stud f of thesaid arm to engage the groove L on the rear side of the coupling-pin.

Nrepresents the usual coupling-link, which is adapted to enter thedraw-head.

\Vhen the coupling pin is raised to the position shown in Fig. 2, thestud f engages the opening K, and thus supports the coupling-pin in itselevated. position. When the cars come together, the coupling-linkenters the draw-head and strikes against the front side of the pivotedarm F, and forces the said arm rearwardly against the tension of thespring M, thus causing the stud f to disengage the opening K and releasethe coupling-pin, which then drops by its own gravity and passes throughthe link, thus coupling the cars together automatically. I

In order to raise the coupling-pin from the top of a freight-car, Iprovide a vertical rod, 0, which is provided near its upper end on oneside with a feather or spline, 1?, which passes through a keeper, R,that is secured on the end of the car. The said keeper is provided witha slot, S, through which the spline and the main portion of the rodpass, and the rod is provided at the upper end of the spline with anenlarged collar, 0, and slightly below the lower end of the spline witha similar collar, 0 'The lower end of the rod is attached to the upperend of the coupling-pin by means of a chain, T.

If it be desired to permit two cars to come together without coupling,the rod 0 is drawn upwardly, so as to raise the coupling-pin, and thesaid rod is then partly turned, sov as to cause the spline to pass outof line with the slot S and bear upon the upper side of the keeper B.This supports the rod 0, and therefore the coupling-pin, in an elevatedposition, so that when the cars come together the couplinglink Thecombination of the draw-head having the vertical slot 0 and the verticalopening E, the arm F, having its lowerend pivoted in the slot 0, andprovided with the stud f at its upper end, the spring M, bearing againstthe rear side of the arm, and the coupling-pin having the opening K nearits center to engage the stud f, and the groove L, extending verticallyfrom the opening K, substantially as described.

In testimeny that I chin] the ibreg'oing sis my own I have heretoaffixe'd my signature in presence of two Witnesses.

ISAAC MITCHELL. WVitnesses:

JAMES H. BIRD, C. W. SCOFIELD.

